laentropia
3ec73559ee
Is nicer this way, also made it more beautiful to look at and therefor to understand.
29 lines
592 B
C
29 lines
592 B
C
#ifndef EVALUATOR_H
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#define EVALUATOR_H
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#include "parser.h"
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#include <stdint.h>
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typedef enum {
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EVALUATOR_OK,
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EVALUATOR_MATH_ERR,
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EVALUATOR_INVALID_PARSING,
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EVALUATOR_INVALID_TREE, // just to shut up the compiler with the swithces
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} EvaluatorErr;
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typedef struct {
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bool is_valid;
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union {
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int64_t val;
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EvaluatorErr err;
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};
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} EvaluatorResult;
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EvaluatorResult evaluate_binary(Node *tree);
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EvaluatorResult evaluate_unary(Node *tree);
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EvaluatorResult evaluate(ParserResult context);
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EvaluatorResult evaluate_tree(Node *tree);
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#endif // !EVALUATOR_H
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